cortex vs cerebral mantle

cortex and cerebral mantle both are nouns.

Word	Noun	Adjective	Verb	Adverb
cortex	Yes	No	No	No
cerebral mantle	Yes	No	No	No

As nouns, cortex and cerebral mantle are synonyms defined as:

cortex and cerebral mantle: the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum

Other synonyms of cortex include cerebral cortex, pallium.

cortex (noun)	cerebral mantle (noun)
the tissue forming the outer layer of an organ or structure in plant or animal	the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
the tissue that surrounds the lens nucleus